annotate default/assets/scss/vendors/bootstrap/mixins/_screen-reader.scss @ 0:1d038bc9b3d2 default tip

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author Liny <dev@neowd.com>
date Sat, 31 May 2025 09:21:51 +0800
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1 // Only display content to screen readers
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2 //
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3 // See: http://a11yproject.com/posts/how-to-hide-content
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4 // See: http://hugogiraudel.com/2016/10/13/css-hide-and-seek/
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5
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6 @mixin sr-only {
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7 position: absolute;
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8 width: 1px;
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9 height: 1px;
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10 padding: 0;
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11 overflow: hidden;
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12 clip: rect(0,0,0,0);
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13 white-space: nowrap;
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14 clip-path: inset(50%);
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15 border: 0;
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16 }
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17
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18 // Use in conjunction with .sr-only to only display content when it's focused.
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19 //
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20 // Useful for "Skip to main content" links; see https://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1
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21 //
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22 // Credit: HTML5 Boilerplate
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23
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24 @mixin sr-only-focusable {
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25 &:active,
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26 &:focus {
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27 position: static;
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28 width: auto;
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29 height: auto;
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30 overflow: visible;
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31 clip: auto;
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32 white-space: normal;
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33 clip-path: none;
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34 }
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35 }